| 摘要 |
PROBLEM TO BE SOLVED: To provide a lubricating oil passage structure of an automatic transmission capable of effectively lubricating a bearing supporting a sprocket by a simple structure.SOLUTION: This lubricating oil passage structure of an automatic transmission includes the bearing 40 for rotatably supporting the sprocket 30 on a TC case 11, a snap ring 35 for locking the bearing 40 to the TC case 11, and a brake guide 60 in which a lubricating oil passage 66 allowing a lubricating oil therethrough is formed. A tool insertion groove 19 is formed in the TC case 11 at a position corresponding to a part of the snap ring 35 in the circumferential direction. The lubricating oil passage 66 of the brake guide 60 and the tool insertion groove 19 of the TC case 11 are disposed so as to provide an overlapped area W where the lubricating oil passage and the tool insertion groove are partially overlapped with each other in the axial direction of an input shaft 2. A communication hole 69 opened from the lubricating oil passage 66 toward the tool insertion groove 19 of the TC case 11 is provided to the portion of the brake guide 60 positioned in the overlapped area W. |
